Ancient Wheat Varieties and Sourdough Fermentation as a Tool to Increase Bioaccessibility of Phenolics and Antioxidant Capacity of Bread

被引:15
作者
Dapcevic-Hadnadev, Tamara [1 ]
Stupar, Alena [1 ]
Stevanovic, Dusan [2 ]
Skrobot, Dubravka [1 ]
Maravic, Nikola [1 ]
Tomic, Jelena [1 ]
Hadnadev, Miroslav [1 ]
机构
[1] Univ Novi Sad, Inst Food Technol, Bul Cara Lazara 1, Novi Sad 21000, Serbia
[2] Univ Belgrade, Inst Mol Genet & Genet Engn, Vojvode Stepe 9 444a, Belgrade 11042, Serbia
关键词
ancient wheat; antioxidant activity; bioaccessibility; breadmaking; sourdough; LACTIC-ACID BACTERIA; FERULIC ACID; WHOLE-GRAIN; FLOUR; BAKING; EXPLOITATION; MICROBIOTA; SELECTION; PROFILES; STARTERS;
D O I
10.3390/foods11243985
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
This study aimed to determine the impact of ancient wheat varieties (emmer, spelt and khorasan) and spontaneous sourdough fermentation on the bioaccessibility of total phenolic content (TPC) and the DPPH antioxidant capacity evolution during breadmaking and in vitro digestion. Sourdough and yeast-fermented modern wheat breads were used as controls. After 6 h of fermentation, the total titrable acidity of the sourdough increased from 139 to 167%. The wheat variety, type of fermentation and processing affected TPC, antioxidant activity and bioaccessibility. Antioxidant activity and TPC were reduced by dough mixing, increased after sourdough fermentation and slightly decreased or remained the same after baking. Although wheat flour had the highest TPC, the modeling of TPC kinetic revealed that emmer and spelt sourdough exhibited a higher bound phenolics release rate due to the higher acidity, which contributed to increased phenolics solubility. Although wheat bread, both before and after digestion, had the lowest TPC, especially the one prepared with yeast, high TPC bioaccessibilities and antioxidant activities after the digestion suggested that, except phenolics, digestion process improved the release of additional compounds with different bioaccessibility and biological activity. The results of this study proved that the application of sourdough fermentation can increase the potential of ancient wheats in the developing of functional bakery products.
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页数:13
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